Development of a Non-Resonant 3D Elliptical Vibration Cutting Apparatus for Diamond Turning
Development of a Non-Resonant 3D Elliptical Vibration Cutting Apparatus for Diamond Turning
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开发用于金刚石车削的非共振 3D 椭圆振动切割装置
DOI：
10.1007/s40799-016-0021-0
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发表时间：
2016-02-01
影响因子：
1.6
通讯作者：
Zhou, X.
中科院分区：
文献类型：
--
作者：
Lin, J.;Lu, M.;Zhou, X.
难加工材料由于刀具磨损快一直是超精密加工的难题。二维椭圆振动切削（2D EVC）通过间歇切削运动可以很好地缓解这一问题，但也存在一些缺陷。在本文中，三维椭圆振动切削（3D EVC）装置的开发。四个平行的压电叠层被用来驱动切削刀具，刀具尖端可以产生三维空间椭圆运动。通过改变压电叠堆激励信号的幅值、频率和相移，可以调整产生的三维椭圆运动的空间位置，也可以调整压电叠堆的作用位置，以满足不同的切割要求。实验结果表明，开发的三维EVC设备具有加工平面，增加刀具寿命，并提高加工表面质量相比，传统的切削和二维EVC方法的可行性。
Machining difficult-to-cut materials has always been a problem to ultraprecision machining due to rapid tool wear. Two-dimensional elliptical vibration cutting (2D EVC) can well alleviate this problem by intermittent cutting motion, but it also has some defects. In this article, a three-dimensional elliptical vibration cutting (3D EVC) apparatus is developed. Four parallel piezoelectric stacks are employed to drive the cutting tool; the tool tip can generate 3D spatial elliptical motions. The spatial positions of generated 3D elliptical motions can be adjusted by varying amplitudes, frequencies, and phase shifts of the actuated signals of piezoelectric stacks; the acting locations of piezoelectric stacks can also be adjusted to satisfy different cutting requirements. Experimental results indicate that the developed 3D EVC apparatus has the feasibility of machining flat surfaces, increasing tool life, and improving machined surface quality compared with conventional cutting and 2D EVC methods.